Factors influencing willingness and ability to pay for social health insurance in Nigeria Ogundeji, Yewande Kofoworola ; Akomolafe, Babatunde ; Ohiri, Kelechi ; Butawa, Nuhu Natie Abstract Publication: PLoS ONE Pub Date: August 2019 DOI: 10.1371/journal.pone.0220558 Bibcode: 2019PLoSO..1420558O